class Person:
    '人员基类，所有的人都要继承 Person 类'
    def __init__(self, id, name):
        self.id = id;
        self.name = name;
        return;

    def getType(self):
        pass;

class Student(Person):
    def __init__(self, id, name, studentId):
        super().__init__(id, name)
        return;

    def getType(self):
        return 'Student 学生类'

class Teacher(Person):
    def __init__(self, id, name, studentId):
        super().__init__(id, name)
        return;

    def getType(self):
        return 'Teacher 老师类'